static void
window_history_capture (GiggleWindow *window)
{
GiggleWindowPriv *priv = GET_PRIV (window);
GiggleWindowSnapshot *snapshot;
if (priv->history_locked)
return;
snapshot = g_slice_new0 (GiggleWindowSnapshot);
snapshot->view = giggle_view_shell_get_selected
(GIGGLE_VIEW_SHELL (priv->view_shell));
if (GIGGLE_IS_HISTORY (snapshot->view)) {
snapshot->view_data = giggle_history_capture
(GIGGLE_HISTORY (snapshot->view));
}
if (priv->history) {
window_history_list_free (priv->history->next);
priv->history->next = NULL;
}
priv->history = g_list_append (priv->history, snapshot);
priv->history = g_list_last (priv->history);
window_history_update_ui (window);
}
GObject *
giggle_history_capture (GiggleHistory *history)
{
GiggleHistoryIface *iface;
g_return_val_if_fail (GIGGLE_IS_HISTORY (history), NULL);
iface = GIGGLE_HISTORY_GET_IFACE (history);
g_return_val_if_fail (NULL != iface->capture, NULL);
return iface->capture (history);
}
void
giggle_history_restore (GiggleHistory *history,
GObject *snapshot)
{
GiggleHistoryIface *iface;
g_return_if_fail (GIGGLE_IS_HISTORY (history));
iface = GIGGLE_HISTORY_GET_IFACE (history);
g_return_if_fail (NULL != iface->restore);
iface->restore (history, snapshot);
}
static void
window_history_restore_snapshot (GiggleWindow *window,
GiggleWindowSnapshot *snapshot)
{
GiggleWindowPriv *priv = GET_PRIV (window);
if (priv->history_locked)
return;
priv->history_locked += 1;
giggle_view_shell_select (GIGGLE_VIEW_SHELL (priv->view_shell),
snapshot->view);
if (GIGGLE_IS_HISTORY (snapshot->view)) {
giggle_history_restore (GIGGLE_HISTORY (snapshot->view),
snapshot->view_data);
}
window_history_update_ui (window);
priv->history_locked -= 1;
}
void
giggle_history_changed (GiggleHistory *history)
{
g_return_if_fail (GIGGLE_IS_HISTORY (history));
g_signal_emit (history, signals[HISTORY_CHANGED], 0);
}
void
giggle_history_reset (GiggleHistory *history)
{
g_return_if_fail (GIGGLE_IS_HISTORY (history));
g_signal_emit (history, signals[HISTORY_RESET], 0);
}
